SNCF's BB 25500 class are part of a series of electric locomotives built by Alsthom.
This allows them to have either increased tractive effort for freight, or a higher top speed.
[4] Unfortunately, 25536 caught fire on 5 December 2017 at Cața station whilst hauling a freight train.
Services worked are: The locomotives have been renumbered by adding 400,000 to their SNCF numbers.
Locomotive 25609 is on preervation in Cité du Train in Mulhouse and is on display.